Files
clang-p2996/clang/test/CodeGen/assign.c
Nikita Popov 532dc62b90 [OpaquePtrs][Clang] Add -no-opaque-pointers to tests (NFC)
This adds -no-opaque-pointers to clang tests whose output will
change when opaque pointers are enabled by default. This is
intended to be part of the migration approach described in
https://discourse.llvm.org/t/enabling-opaque-pointers-by-default/61322/9.

The patch has been produced by replacing %clang_cc1 with
%clang_cc1 -no-opaque-pointers for tests that fail with opaque
pointers enabled. Worth noting that this doesn't cover all tests,
there's a remaining ~40 tests not using %clang_cc1 that will need
a followup change.

Differential Revision: https://reviews.llvm.org/D123115
2022-04-07 12:09:47 +02:00

33 lines
964 B
C

// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64 -emit-llvm -o - %s | FileCheck %s
// Check that we don't generate unnecessary reloads.
//
// CHECK-LABEL: define{{.*}} void @f0()
// CHECK: [[x_0:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[y_0:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 1, i32* [[x_0]]
// CHECK-NEXT: store i32 1, i32* [[x_0]]
// CHECK-NEXT: store i32 1, i32* [[y_0]]
// CHECK: }
void f0(void) {
int x, y;
x = 1;
y = (x = 1);
}
// This used to test that we generate reloads for volatile access,
// but that does not appear to be correct behavior for C.
//
// CHECK-LABEL: define{{.*}} void @f1()
// CHECK: [[x_1:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[y_1:%.*]] = alloca i32, align 4
// CHECK-NEXT: store volatile i32 1, i32* [[x_1]]
// CHECK-NEXT: store volatile i32 1, i32* [[x_1]]
// CHECK-NEXT: store volatile i32 1, i32* [[y_1]]
// CHECK: }
void f1(void) {
volatile int x, y;
x = 1;
y = (x = 1);
}